PEAK Was June's Top Steam Game by Copies Sold

The gaming landscape on Steam experienced significant activity in June 2025, characterized by a mix of high-performing new releases and the sustained commercial viability of legacy titles. The primary objective is to analyze sales performance and market trends for top-selling games, highlighting that seven distinct titles surpassed the one-million-copy threshold during the month. The analysis underscores the continued dominance of indie co-op games, the efficacy of strategic regional pricing, and the power of aggressive discounting for older catalog titles.

Key findings indicate that the co-op climbing game PEAK led the market with 3.1 million copies sold, generating $17 million in revenue. Other million-plus sellers included the Chinese FMV title Revenge on Gold Diggers, the sports-action game Rematch, and established hits such as Elden Ring Nightreign, Stellar Blade, R.E.P.O, and Dune Awakening. Data reveals that regional localization, such as Chinese-language support and pricing, significantly boosted performance for titles like Stellar Blade and Revenge on Gold Diggers. Furthermore, the analysis confirms that legacy titles remain highly profitable; for instance, Star Wars Battlefront II and Stardew Valley saw substantial sales spikes driven by seasonal discounts of 90% and 50%, respectively.

The scope of this analysis is limited to the Steam platform during June 2025, with global geographic coverage but a specific focus on regional market behaviors in China and the United States. The insights are derived from proprietary pre-launch wishlist metrics, sales data, and player crossover analysis. The findings conclude that while new launches drive significant volume, strategic pricing and the cultivation of streamer-friendly, shareable gameplay mechanics remain essential levers for maintaining long-term relevance and revenue growth in the competitive PC gaming market.